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Section 6.3.2

On-site Photos from NLSI Consulting Projects

Below are some photos from recent lightning protection and mitigation projects undertaken by NLSI.

mine site protection 1 mine site protection 2
Question: How to protect worker, fuel dispenser and fuel tanks from lightning? (Mining company, Peru) Client engineers discuss lightning protection topics for Peruvian mine during NLSI workshop. (Mining company, Peru)
   
NASA lightning protection Motorola R56 violations
NASA Study Group, Kennedy Space Center Pad 39B. NLSI's R. Kithil with Aerojet's J. Chai atop launch platform. (NASA, Kennedy Space Center, Florida) Eleven violations of Motorola R56 in this single photo. (Adams County E911 Operations, Denver, Colorado)
   
railroad circuits protection high-capacity SPDs
Protection via isolation to railroad circuits. (Valero Refinery, Delaware City, Delaware) 1250-MW steam power plant went offline due to lightning. Rosemont sensors required high capacity SPDs as part of remediation. (Cottonwood Operating Co., Orange, Texas)
   
earth electrode sri lanka workshop
This earth electrode at a cement plant deemed satisfactory although NEC 250 calls for 25 ohms. (Metromount USA, Atlanta, Georgia) Rich Kithil, CEO of NLSI, at Sri Lanka lightning workshop.
   
dfw airport dfw airport
Elevated runway of the Dallas-Fort Worth Airport People Mover. (Dallas, Texas) Garage in the Dallas-Fort Worth Airport People Mover. (Dallas, Texas)
   
overhead shield wires r. kithil at flight facility

Explosives handling wharf with overhead shield wires. (Trident submarine base at Kings Bay, Georgia)

NLSI CEO Rich Kithil at NASA's Wallops Island, Virginia site. NLSI's assignment was at the 01B launch platform.
   
poor grounding overhead shield wires
Very poor grounding at a storage site. Tight bend creates unwanted impedance. (NASA, Wallops Island, Virginia) Overhead shield wires at a U.S. Navy munitions storage site.
   
poor grounding
poor bonding evidence
Example of poor grounding at a telecommunications site. Evidence of lightning arcing on communications surge protector as a result of poor bonding practices. (Mining company, Peru)
   
high resistance at air terminal
sacrificial protective rods
Very high resistance at air terminal down-conductor indicates lightning will seek a more favorable path to ground. Who knows where? (Mining company, Peru) Sacrificial tall rods positioned at 120 degrees surround and protect a solar array and water monitoring system in Florida.
   
earth electrode continuity air terminal on roof
Verification of earth electrode continuity. (Computer Center, Cleveland, Ohio) Air terminals on roof? Which design? In this case, no design was best. (Computer Center, Cleveland, Ohio)
   
outdoor worker safety class in Bangladesh
Outdoor worker lightning safety involves detection, notification, and suspension/resumption of activities, as well as safe shelter. (Client near Nashville, Tennessee) Lightning safety training in Bangladesh.
   
Overhead shield wire is best air terminal for control center. (Mining company, Peru) Close encounters with unexpected safety issue. (Huntsville, Alabama)
   
Signal cable SPD not grounded and ineffective. (Huntsville, Alabama) Bus bar grounding wire (at RHS) transits concrete. Alkaline will corrode the wire, causing future problems. (NASA, Kennedy Space Center, Florida)

 


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National Lightning Safety Institute
Providing expert training and consulting for lightning problems